Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES
Volume 92, Issue 1, Pages 97-102Publisher
NATL ACAD SCIENCES INDIA
DOI: 10.1007/s40010-020-00669-x
Keywords
FDM; Vapour smoothing; ABS replicas; Investment casting; Density
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This study highlights the step-by-step procedure for controlling the density of master patterns/replicas after processing with VS for investment casting applications, aiming to address the issues of heat input and ash removal during burnout stage.
The need of customized products with tight dimensional tolerances, lower production cost and shorter lead times led to the development of additive manufacturing techniques like fused deposition modelling (FDM). The digitally fabricated ABS patterns prepared on FDM needs to be processed by vapour smoothing (VS) in order to reduce the surface roughness. The post-processing of FDM-based patterns/replicas with VS increases their density, which increases heat input and complexities in ash removal during burnout stage from ceramic shell in investment casting (IC). This study highlights the step-by-step procedure for controlling the density of master patterns/replicas after processing with VS for IC applications.
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